I had a Sylvari mesmer that was level 6 that had started but not completed the first bit of story pre-update. Post update, I wound up getting to level 17 via crafting, and headed out to try and do the first chunk of story. (I had talked to her, but not gone past that.)
Update hits, and whereas before I DID have the investigate the troll burrow goal, it’s now back on talking to her, only checked as completed. Same bug as everyone else. Hit 20, no change. Says I unlocked the next leg of the story, but I cannot progress whatsoever as it’s stuck on talking to the mender.